std.testing: disable expectEqualSlices printing for spirv

1 files changed, 8 insertions, 4 deletions

diff --git a/lib/std/testing.zig b/lib/std/testing.zig
index d4d162721d..95f1b156c1 100644
--- a/lib/std/testing.zig
+++ b/lib/std/testing.zig
@@ -21,13 +21,13 @@ pub var base_allocator_instance = std.heap.FixedBufferAllocator.init("");
 /// TODO https://github.com/ziglang/zig/issues/5738
 pub var log_level = std.log.Level.warn;
 
+// Disable printing in tests for simple backends.
+pub const backend_can_print = builtin.zig_backend != .stage2_spirv64;
+
 fn print(comptime fmt: []const u8, args: anytype) void {
     if (@inComptime()) {
         @compileError(std.fmt.comptimePrint(fmt, args));
-    } else {
-        // Disable printing in tests for simple backends.
-        if (builtin.zig_backend == .stage2_spirv64) return;
-
+    } else if (backend_can_print) {
         std.debug.print(fmt, args);
     }
 }
@@ -304,6 +304,10 @@ pub fn expectEqualSlices(comptime T: type, expected: []const T, actual: []const
         break :diff_index if (expected.len == actual.len) return else shortest;
     };
 
+    if (!backend_can_print) {
+        return error.TestExpectedEqual;
+    }
+
     print("slices differ. first difference occurs at index {d} (0x{X})\n", .{ diff_index, diff_index });
 
     // TODO: Should this be configurable by the caller?